Patents by Inventor Zhengfeng Zhu

Zhengfeng Zhu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220268980
    Abstract: A color filter and a method of manufacturing thereof are provided. The color filter includes a substrate, a black matrix block, and a color resist unit. The black matrix block includes a first black matrix unit and a second black matrix unit. The black matrix unit is composed of a hydrophilic material. and the second black matrix unit is composed a hydrophobic material. Only one color resist unit is disposed between any two adjacent black matrix blocks, and a side of the color resist unit away from the substrate includes a convex arc shape.
    Type: Application
    Filed: July 20, 2020
    Publication date: August 25, 2022
    Inventors: Zhengfeng ZHU, Wenliang GONG
  • Patent number: 11393881
    Abstract: A display device and a manufacturing method thereof are provided. The method includes: forming a device board; forming a first light-shielding layer in the first region and on the device board, wherein an inclination angle between a first light-shielding unit in the first light-shielding layer and the device board is less than 90 degrees; forming a second light-shielding layer on the first light-shielding layer, wherein an inclination angle between a second light-shielding unit in the second light-shielding layer and the device board is less than 90 degrees; forming a color resist layer in the second region and on the device board; and forming a passivation layer.
    Type: Grant
    Filed: May 9, 2020
    Date of Patent: July 19, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zhengfeng Zhu
  • Publication number: 20210305321
    Abstract: A display device and a manufacturing method thereof are provided. The method includes: forming a device board; forming a first light-shielding layer in the first region and on the device board, wherein an inclination angle between a first light-shielding unit in the first light-shielding layer and the device board is less than 90 degrees; forming a second light-shielding layer on the first light-shielding layer, wherein an inclination angle between a second light-shielding unit in the second light-shielding layer and the device board is less than 90 degrees; forming a color resist layer in the second region and on the device board; and forming a passivation layer.
    Type: Application
    Filed: May 9, 2020
    Publication date: September 30, 2021
    Inventor: Zhengfeng ZHU
  • Publication number: 20070138896
    Abstract: This invention relates to electromechanical field, and particularly relates to improvement of a reluctance machine, and provides an outer magnetic circuit bias magnet reluctance machine with permanent magnet. The reluctance machine is made up of a housing for supporting the machine, a stator, a rotor and permanent magnets. The stator at least consists of a pair of unit constructions. The permanent magnets are placed in magnetic circuit that is made up of the housing for supporting the machine made of magnetic material and the stator. And the stator suits with an inner rotor or an outer rotor, a cup rotor, a disk rotor or a toothed rack rotor. This invention can increase sufficiently utility factor off material, depress cost, and have more application, and the ratio off performance and price of the reluctance machine is obviously higher than that of a synchronous machine.
    Type: Application
    Filed: February 27, 2004
    Publication date: June 21, 2007
    Inventor: Zhengfeng Zhu